how to fix P0455 EVAP leak code in Tesla Outback 5th Generation (2015-2019)

Learn how to diagnose and fix P0455 EVAP leak in Tesla Outback 5th Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts required.
• Disconnect the vehicle battery to ensure safety.
• Ensure the vehicle is on a level surface and the engine is cool.

2. Inspect and Replace Gas Cap

• Tools Required: None specific.
• Sub-steps:
  1. Remove the gas cap and inspect it for damage or wear.
  2. If damaged, replace it with a new gas cap that meets OEM specifications.

3. Inspect and Replace EVAP Hoses

• Tools Required: Pliers, socket set.
• Sub-steps:
  1. Locate the EVAP hoses connected to the fuel tank and EVAP canister.
  2. Remove any clamps or fittings securing the hoses.
  3. Inspect hoses for cracks or deterioration. Replace any damaged hoses with new ones.
  4. Reattach hoses securely and replace clamps if necessary.

4. Smoke Test the EVAP System

• Tools Required: Smoke machine.
• Sub-steps:
  1. Connect the smoke machine to the EVAP service port.
  2. Activate the smoke machine and observe for smoke escaping from any leaks.
  3. Identify and repair any leaks found during the smoke test.

5. Test and Replace EVAP Purge Valve

• Tools Required: Multimeter, socket set.
• Sub-steps:
  1. Locate the EVAP purge valve, usually near the intake manifold.
  2. Disconnect the electrical connector from the purge valve.
  3. Use a multimeter to test the valve's resistance; refer to the service manual for specifications.
  4. If the valve is faulty, replace it with a new one and reconnect the electrical connector.

6. Reconnect Battery and Clear Codes

• Tools Required: None specific.
• Sub-steps:
  1. Reconnect the vehicle battery.
  2. Use the OBD-II scanner to clear the P0455 code.